function LaserPolylineTrailLinkMaterialProperty(duration, color) {
    this._definitionChanged = new Cesium.Event();
    this._color = undefined;
    this._colorSubscription = undefined;
    this.color = color;
    this.duration = duration;
    this._time = new Date().getTime();
}

Object.defineProperties(LaserPolylineTrailLinkMaterialProperty.prototype, {
    isConstant: {
        get: function () {
            return false;
        },
    },
    definitionChanged: {
        get: function () {
            return this._definitionChanged;
        },
    },
    color: Cesium.createPropertyDescriptor("color"),
});
// eslint-disable-next-line no-unused-vars
LaserPolylineTrailLinkMaterialProperty.prototype.getType = function (time) {
    return "PolylineTrailLink";
};
LaserPolylineTrailLinkMaterialProperty.prototype.getValue = function (
    time,
    result
) {
    if (!Cesium.defined(result)) {
        result = {};
    }
    result.color = Cesium.Property.getValueOrClonedDefault(
        this._color,
        time,
        Cesium.Color.WHITE,
        result.color
    );
    result.image = Cesium.Material.PolylineTrailLinkImage;
    result.time =
        ((new Date().getTime() - this._time) % this.duration) / this.duration;
    return result;
};
LaserPolylineTrailLinkMaterialProperty.prototype.equals = function (other) {
    return (
        this === other ||
        (other instanceof LaserPolylineTrailLinkMaterialProperty &&
            Cesium.Property.equals(this._color, other._color))
    );
};
Cesium.LaserPolylineTrailLinkMaterialProperty = LaserPolylineTrailLinkMaterialProperty;
Cesium.Material.PolylineTrailLinkType = "PolylineTrailLink";
Cesium.Material.PolylineTrailLinkImage = "https://www.hdzmap.com/gis-web/img/flow1.png";
Cesium.Material.PolylineTrailLinkSource =
    "czm_material czm_getMaterial(czm_materialInput materialInput)\n\
{ czm_material material = czm_getDefaultMaterial(materialInput); vec2 st = materialInput.st;\n\
vec4 colorImage = texture2D(image, vec2(fract(st.s - time), st.t));\n\
material.alpha = colorImage.a * color.a;\n\
material.diffuse = (colorImage.rgb + color.rgb) / 2.0;\n\
return material;}";
Cesium.Material._materialCache.addMaterial(
    Cesium.Material.PolylineTrailLinkType,
    {
        fabric: {
            type: Cesium.Material.PolylineTrailLinkType,
            uniforms: {
                color: new Cesium.Color(1.0, 0.0, 0.0, 0.5),
                image: Cesium.Material.PolylineTrailLinkImage,
                time: 20,
            },
            source: Cesium.Material.PolylineTrailLinkSource,
        },
        // eslint-disable-next-line no-unused-vars
        translucent: function (material) {
            return true;
        },
    }
);